Question

An electron emitted in beta radiation originates from

• A. Inner orbits of atom
• B. Free electrons existing in the nuclei
• C. Decay of a neutron in a nuclei
• D. Photon escaping from the nucleus

Answer 1

Answer: (C)

Decay of a neutron in a nuclei

Answer 2

: In $\beta -$emission, a neutron of nucleus decays into a proton, a $\beta$ - particle and an anti-neutrino

$n \rightarrow p + e^{-} + \overline{v}$